2, food, the basic meaning is to eat, the meaning of color can refer to the appearance (the color is strong within the weak), refers to the beautiful face (color failure love flaccid), in the Buddhist terminology can also refer to the material (color is empty). Sex, is human nature. Also, is to express the tone of judgment auxiliary.

3, "food, color, and sex" This quote is from the "Mengzi - Suizi on the fourth section": Suizi said: "Food, color, and sex. Benevolence, internal, not external; righteousness, external, not internal."

4. Meaning:Suzi said: "Food and drink, men and women, this is the nature, and mutual dearness to each other, is internal, not external, the way of behavior, is external, not internal."